EXPO: a quantum leap in fast, wide-band X-ray polarimetry for astrophysics
The EXPO mission concept proposes a next-generation X-ray polarimetry observatory designed to overcome limitations of previous missions like IXPE by combining broadband polarimetry (2–35 keV), rapid response, and simultaneous spectroscopy. It features five focusing telescopes and a Spectral Imaging Camera to unlock new scientific capabilities across high-energy astrophysics.